Improvement in heating-drums



TJ'NITED STATES ORLANDO D. SPALDING, OF MANKATO, MINNESOTA.

IMPROVEMENT IN HEATING-DRUMS.

Specification forming part of Letters Patent bld-144,573, dated Novrnbrr11,1573; application led August 23, 1873.

To all whom it may concern:

Be it known that I, ORLANDO D. SPALDING,

` of Mankato, in the county of Blue Earth and State of Minnesota, haveinvented a new and valuable Improvement in Stove Drum or Heater; and Ido hereby declare that the following is a full, clear, and exactdescription of the construction and Operation Of the same, referencebeing had to the annexed drawings making a part of this specificationand to the letters and figures of reference marked thereon.

`Figure 1 of the drawings is a section of my stove-drum.

This invention has relation to stove-drum heaters; and consists in thedouble cones, removable inverted cone, and a shelf with a per foratedflange, as will be hereinafter more fully described.

` Inthe accompanying drawings, A is the stovepipe, which consists of twosections united by a joint at s. The lower section has an upwardly-aringor conical enlargement, B, formed on it, and the upper section has adownwardly- Haring or conical portion, D, formed 011 its lower end. Whenthe bases of the two cones are united a double conical chamber isformed,

through which the flame and smoke from the flame and smoke into thechamber formed by the conical wall D. The rising products will then bespread outwardly below the cone C, and contracted above thiscone, asindicatedin the drawing by the arrows. The cone C is movable, forcleaning the pipe of soot, and eX- tending diametrically across it is abar, o, which serves as a handle, and also a stiffener. On top of thecone D, and surrounding the stovepipe, is a horizontal shelf, G, whichis constructed with a flange, G', that is perforated at q for allowing afree circulation of air beneath the shelf and through the iiange. TheObject of the shelf is to support small articles which it may be desiredto keep warm, and which would be in the way if placed upon the top of ythe stove. I thus utilize the stove-pipe as a support for such articles,and I also utilize a very large proportion of heat, which would becarried off into the chimney without the enlargement of the pipe.

I prefer in all cases to combine the shelf with the conical heater, butdo not confine myself i In testimony that I claim the above I havehereunto subscribed my name in the presence of two witnesses. i

ORLANDO DEMIs sPALDiNG'.

Witnesses JOHN S. BROWN, ALFRED G. JAQUEs. i

